Home / 69,344.18-104,000.18-19,427.78

Finding the Fourth Proportional to 69,344.18, 104,000.18 and 19,427.78

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Solution

The fourth proportional to 69,344.18, 104,000.18 and 19,427.78 is: 29,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,344.18 : 104,000.18 = 19,427.78 : x
  2. Step 2: Convert to fraction form
    69,344.18/104,000.18 = 19,427.78/x
  3. Step 3: Cross multiply
    69,344.18x = 104,000.18 × 19,427.78
  4. Step 4: Simplify right side
    69,344.18x = 2,020,492,617.00
  5. Step 5: Solve for x
    x = 2,020,492,617.00/69,344.18
  6. Step 6: Final answer
    x = 29,137.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.